According to the theory of traditional Chinese medicine, cough is a group of diseases with cough as the main symptom, which is caused by the invasion of pathogenic factors into the lung system, the lung can not show itself, and the lung qi rushes up. It is both a symptom and an independent disease. Abnormal endowment, environmental stimulation, nose, throat, stomach and other related factors can all lead to cough, while wind evil can suppress lung orifices, stomach qi can rise and fall, and lung qi can rise and fall due to organ damage and then spread to the lungs. The treatment of cough should be based on syndrome differentiation, which can be divided into wind-cold attacking lung syndrome, wind-heat attacking lung syndrome, dryness-evil injuring lung syndrome, phlegm-heat depressing lung syndrome and lung yin deficiency syndrome.

Tongxuanlifei Pill consists of Folium Perillae, Herba Ephedrae, Radix Peucedani, Semen Armeniacae Amarum, Radix Platycodi, Pericarpium Citri Tangerinae, Rhizoma Pinelliae (processed), Poria, Scutellariae Radix, Fructus Aurantii (fried) and Glycyrrhrizae Radix. Perilla frutescens and Herba Ephedrae in the prescription have the effects of expelling wind and cold, sweating and relieving exterior syndrome, dispersing lung qi and relieving asthma, and * * * is the monarch drug. Radix Peucedani and Semen Armeniacae Amarum can reduce qi, resolve phlegm and relieve asthma, while Radix Platycodi can disperse lung, resolve phlegm and relieve sore throat. The combination of the three drugs can restore the mechanism of dispersing lung. Pericarpium Citri Reticulatae and Rhizoma Pinelliae are used for eliminating dampness and resolving phlegm, Poria is used for invigorating spleen and eliminating dampness, and * * * is a minister medicine. Scutellaria baicalensis Georgi can clear away lung heat, so as to prevent exogenous pathogens from dissipating heat and prevent Ephedra and Pinellia ternata from being too dry at the same temperature. Fructus Aurantii regulates qi and turns phlegm into fluid, with * * * as the assistant. Glycyrrhiza uralensis Fisch can eliminate phlegm and relieve cough, and harmonize various medicines. The whole prescription can relieve exterior syndrome, dispel cold, disperse lung and relieve cough. It can be used for the treatment of fever, aversion to cold, headache, nasal congestion, whitish cough, wheezing without sweat, arthralgia, thin and white tongue coating, and tight pulse caused by wind-cold external bundle, unsmooth lung qi, and adverse qi and phlegm obstruction.

Modern pharmacological studies have proved that Xuan Tong Li Fei Pill has antitussive, expectorant, antiasthmatic, antipyretic, anti-inflammatory, analgesic, antibacterial, antiviral, cough reflex-inhibiting, cough frequency-reducing, wheezing incubation period-prolonging, tracheal expectoration-increasing, airway inflammatory reaction-resisting, staphylococcus albus, staphylococcus aureus, hemolytic streptococcus and influenza virus-inhibiting effects, and is suitable for colds, acute bronchitis and chronic rhinitis.

Shedan Chuanbei Pipa Ointment consists of snake gall, loquat leaves, Fritillaria cirrhosa, Pinellia ternata, Platycodon grandiflorum and menthol. The snake gall in the prescription tastes bitter and cold, and it is good at clearing heat and resolving phlegm, so it is the monarch medicine. Eriobotrya leaves clear lung, reduce qi, resolve phlegm and relieve cough; Fritillaria cirrhosa tastes bitter and slightly cold, clearing lung and resolving phlegm, moistening lung and relieving cough; Pinellia ternata is the source of pungent warming, eliminating dampness and resolving phlegm. The combination of three herbs aims at resolving phlegm and relieving cough, and * * * is a minister medicine. Platycodon grandiflorum dispersing lung, benefiting qi and resolving phlegm; Menthol is fragrant, dispelling wind and clearing heat, clearing throat and benefiting throat, which is an adjuvant medicine. The whole prescription can clear lung, relieve cough, eliminate phlegm and relieve asthma. It can be used for treating cough, yellow or sticky phlegm, cough discomfort, chest tightness, shortness of breath, greasy fur, and slippery pulse caused by exogenous wind-heat invading the lung, lung obstruction and lung qi upwelling.

Modern pharmacological research has proved that Shedan Chuanbei Pipa ointment has antitussive, antiasthmatic, expectorant and anti-inflammatory effects, which can reduce the number of coughs, relax bronchial smooth muscle, increase the amount of expectoration and resist airway inflammation. It is suitable for the adjuvant treatment of acute and chronic bronchitis.

The prescription of Er Mu Ning Shou Pill is Rhizoma Anemarrhenae, Bulbus Fritillariae Cirrhosae, Gypsum Fibrosum, Fructus Gardeniae preparata, Scutellariae Radix, Fructus Trichosanthis preparata, Cortex Mori, Poria, Pericarpium Citri Tangerinae, Fructus Aurantii Immaturus preparata with bran, Fructus Schisandrae Chinensis (steamed) and Radix Glycyrrhizae Preparata. Rhizoma Anemarrhenae and Bulbus Fritillariae Cirrhosae in the prescription have the effects of clearing lung-heat, moistening dryness, resolving phlegm and relieving cough, and * * * is the monarch drug. Gypsum, Scutellaria baicalensis Georgi and Mast can clear lung heat, mulberry bark can clear lung and relieve asthma, and Fructus Trichosanthis can moisten lung and resolve phlegm. * * * is the Minister of Medicine. Pericarpium Citri Tangerinae and Fructus Aurantii Immaturus regulate qi and eliminate phlegm, Poria strengthens the spleen and promotes diuresis, and Schisandra chinensis astringes the lung and relieves cough, and * * * is the adjuvant medicine. Licorice moistens the lungs to relieve cough, and various drugs are blended into medicine. The whole prescription can clear lung and moisten dryness, resolve phlegm and relieve cough. Can be used for patients with cough with yellow and sticky phlegm, chest distress and shortness of breath, persistent cough, hoarseness and sore throat, yellow tongue coating, slippery pulse, acute and chronic bronchitis and pharyngolaryngitis.

Hong Ju Pill consists of Hong Ju, Fritillaria thunbergii, Pericarpium Citri Tangerinae, Rhizoma Pinelliae (preparata), Poria, Glycyrrhrizae Radix, Semen Armeniacae Amarum, Fructus Perillae preparata, Radix Platycodi, Zi Yuan, Flos Farfarae, Fructus Trichosanthis, Gypsum Fibrosum, Radix Rehmanniae and Radix Ophiopogonis. Exocarpium citri grandis in the prescription regulates qi and is wide in the middle, drying dampness and resolving phlegm; Fritillaria thunbergii has the effects of clearing away heat and purging fire, resolving phlegm and relieving cough, and * * * is the monarch drug. Pericarpium Citri Reticulatae, Rhizoma Pinelliae and Poria combine the meaning of Erchen Decoction, strengthening the spleen to dry dampness, regulating qi and resolving phlegm, so that dampness can remove spleen without producing phlegm, and * * * is a minister medicine. Almonds and perilla seeds reduce qi and phlegm; Platycodon grandiflorum spreads lung and eliminates phlegm, dredges blood stasis, and makes qi benefit phlegm and heal itself; Zi Yuan, Tussilago farfara, Trichosanthes kirilowii and gypsum can clear away lung heat and enhance the efficacy of clearing heat and resolving phlegm; Rehmannia glutinosa and Ophiopogon japonicus are adjuvant drugs to prevent phlegm-heat from damaging yin. Licorice. Tonify qi, eliminating phlegm, and reconcile various medicines to prepare medicines. The whole prescription has the functions of clearing away lung heat, resolving phlegm and relieving cough. It can be used for treating cough, multi-color and yellow phlegm, difficulty in expectoration, chest distress and dry mouth, no appetite, red tongue, yellow and greasy fur and rapid pulse caused by lung failure due to phlegm obstruction and stagnation of heat.

Modern pharmacological studies have confirmed that Hong Ju Pill has antitussive, antiasthmatic, antipyretic and bacteriostatic effects, which can prolong the latent period of cough, reduce the number of coughs, reduce the high fever caused by endotoxin and inhibit airway inflammation. It has antibacterial effect on staphylococcus aureus, pneumococcus and hemolytic streptococcus in vitro, and is suitable for adjuvant treatment of acute and chronic bronchitis.

Baihe Gujin Pill consists of Lily, Radix Rehmanniae Preparata, Radix Ophiopogonis, Bulbus Fritillariae Cirrhosae, Radix Scrophulariae, Radix Rehmanniae, Radix Angelicae Sinensis, Radix Paeoniae Alba, Radix Platycodonis and Radix Glycyrrhizae. Lily in the prescription clears lung, moistens dryness and relieves cough, and Rehmannia glutinosa nourishes kidney and yin, and * * * is the monarch medicine. Ophiopogon japonicus, Bulbus Fritillariae Cirrhosae, Radix Scrophulariae and Radix Rehmanniae are monarch drugs, nourishing yin and moistening lung, relieving cough and resolving phlegm, and * * * is minister drug. Radix Angelicae Sinensis, Radix Paeoniae Alba, nourishing blood and regulating yin, Radix Platycodi relieving cough and resolving phlegm, and * * * as adjuvant drugs. Licorice moistens the lungs and relieves cough, and harmonizes various medicines. The whole prescription nourishes yin, moistens lung, resolves phlegm and relieves cough. Used for dry cough caused by deficiency of lung and kidney yin, characterized by dry cough with little phlegm, blood in sputum, hoarseness of cough, hot flashes in the afternoon, dry mouth and throat, red tongue with little coating and rapid pulse.

Modern pharmacological studies have confirmed that Baihe Gujin Pill has expectorant, antitussive and anti-inflammatory effects, which can promote the expectoration of respiratory tract, increase the amount of sputum secreted by respiratory tract, prolong cough time and cough incubation period, reduce cough times, inhibit the aggregation of leukocytes in respiratory tract and inhibit respiratory inflammation, and is suitable for the adjuvant treatment of chronic bronchitis.